perf-report: Add modes for inherited stats and no-samples

Now that we can collect per task statistics, add modes that
make use of that facility.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 17 insertions, 2 deletions

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index f4f0240d2302..798a56d890e5 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -41,6 +41,8 @@ static int			force				= 0;
 static int                      append_file                     = 0;
 static int                      call_graph                      = 0;
 static int                      verbose                         = 0;
+static int                      inherit_stat                    = 0;
+static int                      no_samples                      = 0;
 
 static long                     samples;
 static struct timeval           last_read;
@@ -393,6 +395,12 @@ static void create_counter(int counter, int cpu, pid_t pid)
                 attr->sample_freq       = freq;
         }
 
+        if (no_samples)
+                attr->sample_freq = 0;
+
+        if (inherit_stat)
+                attr->inherit_stat = 1;
+
         if (call_graph)
                 attr->sample_type       |= PERF_SAMPLE_CALLCHAIN;
 
@@ -571,7 +579,7 @@ static int __cmd_record(int argc, const char **argv)
                 }
         }
 
-        while (!done) {
+        for (;;) {
                 int hits = samples;
 
                 for (i = 0; i < nr_cpu; i++) {
@@ -579,8 +587,11 @@ static int __cmd_record(int argc, const char **argv)
                                 mmap_read(&mmap_array[i][counter]);
                 }
 
-                if (hits == samples)
+                if (hits == samples) {
+                        if (done)
+                                break;
                         ret = poll(event_array, nr_poll, 100);
+                }
         }
 
         /*
@@ -629,6 +640,10 @@ static const struct option options[] = {
                     "do call-graph (stack chain/backtrace) recording"),
         OPT_BOOLEAN('v', "verbose", &verbose,
                     "be more verbose (show counter open errors, etc)"),
+        OPT_BOOLEAN('s', "stat", &inherit_stat,
+                    "per thread counts"),
+        OPT_BOOLEAN('n', "no-samples", &no_samples,
+                    "don't sample"),
         OPT_END()
 };